2585681322 has 64 divisors (see below), whose sum is σ = 5983165440. Its totient is φ = 729680256.

The previous prime is 2585681303. The next prime is 2585681333. The reversal of 2585681322 is 2231865852.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2053129 + ... + 2054387.

It is an arithmetic number, because the mean of its divisors is an integer number (93486960).

Almost surely, 2^2585681322 is an apocalyptic number.

2585681322 is an abundant number, since it is smaller than the sum of its proper divisors (3397484118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2585681322 is a wasteful number, since it uses less digits than its factorization.

2585681322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1835.

The product of its digits is 230400, while the sum is 42.

The square root of 2585681322 is about 50849.5951016328. The cubic root of 2585681322 is about 1372.5399666531.

The spelling of 2585681322 in words is "two billion, five hundred eighty-five million, six hundred eighty-one thousand, three hundred twenty-two".